Tenda F456 httpd Natlimit fromNatlimitof buffer overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A flaw has been found in Tenda F456 1.0.0.5. The impacted element is the function fromNatlimitof of the file /goform/Natlimit of the component httpd. Executing a manipulation can lead to buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | F456 | 1.0.0.5 | — | No fix listed | CNA |
- F456 VendorTenda Affected 1.0.0.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7100
- 2026-10-03 Alias added: GHSA-76g8-fp3c-24r7
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More Tenda F456 Firmware vulnerabilities
- TI-2026-06225 Tenda F456 httpd WrlclientSet fromWrlclientSet buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06223 Tenda F456 httpd QuickIndex formQuickIndex buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06222 Tenda F456 httpd DhcpListClient fromDhcpListClient buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06221 Tenda F456 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06206 Tenda F456 httpd WrlExtraSet formWrlExtraSet buffer overflow CVSS 4.0HIGH 8.7
- TI-2026-06205 Tenda F456 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2026-7100 · CVE Program
- CVE-2026-7100 · NVD
- FIRST EPSS
- GHSA-76g8-fp3c-24r7 · GitHub Advisory Database · CC BY 4.0
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